Rank	Countries/Territories	Count	Percent
1	United States	477	42.9%
2	China	314	28.2%
3	Germany	70	6.3%
4	Japan	51	4.6%
5	Singapore	40	3.6%
6	Australia	40	3.6%
7	France	31	2.8%
8	Switzerland	27	2.4%
9	Netherlands	19	1.7%
10	Bangladesh	8	0.7%
11	Cyprus	5	0.4%
12	Korea, Republic of	5	0.4%
13	Canada	4	0.4%
14	Ukraine	3	0.3%
15	Argentina	3	0.3%
16	United Kingdom	2	0.2%
17	Ecuador	2	0.2%
18	Georgia	2	0.2%
19	Taiwan	2	0.2%
20	Thailand	2	0.2%
21	Mexico	1	0.1%
22	Mongolia	1	0.1%
23	India	1	0.1%
24	Iran, Islamic Republic of	1	0.1%
25	Norway	1	0.1%